How do I learn more about the Cad 346, which, I guess, is what I have in this truck. Any way to determine year of production of engine? I am building a 1940's 1.5 ton Chev truck, (yes, sorry it's not a Cad truck), and now I am looking at this flathead Cad and thinking this could be something worthwhile. Truck has not run for years and I want to see if the engine could still be OK.

Where on the engine do I look for identifying marks, etc.? I have read these engines were widely used in military applications in WWII.